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Vor einem Tag · Matter waves are a central part of the theory of quantum mechanics, being half of wave–particle duality. At all scales where measurements have been practical, matter exhibits wave-like behavior. For example, a beam of electrons can be diffracted just like a beam of light or a water wave.
23. Mai 2024 · Maxwell's equations may be combined to demonstrate how fluctuations in electromagnetic fields (waves) propagate at a constant speed in vacuum, c (299 792 458 m/s). Known as electromagnetic radiation, these waves occur at various wavelengths to produce a spectrum of radiation from radio waves to gamma rays.
23. Mai 2024 · In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be seen.
Vor 3 Tagen · Wave-particle duality is the term for the fact that fundamental objects in the universe such as photons or electrons appear to exhibit aspects of either waves or particles depending on the experiment. Through the beginning of the twentieth century, light was widely accepted to be a wave while matter was understood to be comprised of ...
9. Mai 2024 · Essentially a wave equation, the Schrödinger equation describes the form of the probability waves (or wave functions [ see de Broglie wave ]) that govern the motion of small particles, and it specifies how these waves are altered by external influences.
- The Editors of Encyclopaedia Britannica
21. Mai 2024 · In this explainer, we will learn how to calculate the de Broglie wavelength of massive particles that have a given momentum or velocity. Recall that light can be described using both a wave model and a particle model. Phenomena such as refraction and diffraction can be explained using the wave model of light.
6. Mai 2024 · Dark matter is that invisible glue that keeps stars, dust, and gas together in a galaxy. This mysterious substance makes up the majority of a galaxy's mass and forms the foundation of our Universe's structure. Dark matter is still one of the greatest mysteries of science. Credit: NASA/JPL-Caltech.
